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  • Meeting All Your Pets' Health Care Needs

    We provide all the essential veterinary services your pet needs to stay healthy. These include wellness exams and vaccinations, as well as dental care, internal medicine, and senior pet care.

    Core Care

  • New Patients Welcome in Fremont

    Ace Animal Hospital is accepting new patients! Get in touch with us to learn more about bringing your pet to our compassionate and highly skilled veterinarian.

    Patient Info

Quality, Integrity, Compassion & Service

Ace Animal Hospital is a full-service hospital in Fremont. We provide comprehensive veterinary services for pets. From regular checkups and vaccinations to internal medicine and dental care, we have all your pet's needs covered under one roof.

Routine Exams

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Preventive Care

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Dental Care

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In-House Diagnostics

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Welcome to Our Ace Animal Hospital

Ace Animal Hospital is a full-service pet hospital in Fremont. We provide extensive medical services for cats and dogs.

From preventive care and surgery to cold laser therapy, we have a wide range of services to meet all your pet's health needs in one location.

We care for pets in Fremont and beyond. We have earned a reputation for providing quality, professional care with a compassionate touch.

Whether you are bringing your pet in for the first time or have relied on our veterinary team for years, we will treat them as if they were our own.

About Our Hospital

Ace Animal Hospital | Fremont Speciality & Emergency Vet

  • My pets have had wonderful care from Dr. Longley. She was willing to explain all the options and costs in detail. She cared for my 20-year-old cat who developed kidney disease, as well as my cat Rocky and dog Eddie, who has back trouble. The vets are patient, positive, and willing to work with you to have the best care possible. I highly recommend them! The techs and office staff have been great too.
    - Barbara B.
  • I took my dog here for an allergic reaction to fleas. They were very thorough. I was grateful the vet spent so much time talking with me about all of my dog's issues, my concerns, the options, as well as discussing cost with me before doing anything.
    - Megan S.
  • We've been to this vet for both my dogs and were happy with our experience, the two times we went. There is lots of parking. We didn't get to go inside the office due to covid-19. However, all the techs were nice and treated our dogs carefully when they brought them in and out of the clinic. My husband spoke to the doctor on the phone. The vet told him that our little girl was healthy and that he'd give us the prescription for her sensitive skin food. We'll continue going here.
    - Christine C.

Specialists | Ace Animal Hospital | Fremont Speciality & Emergency Vet
Specialists | Ace Animal Hospital | Fremont Speciality & Emergency Vet
Specialists | Ace Animal Hospital | Fremont Speciality & Emergency Vet
Specialists | Ace Animal Hospital | Fremont Speciality & Emergency Vet

Veterinary Care for Puppies & Kittens

At Ace Animal Hospital, we provide comprehensive medical care to your new bundle of fluff and joy.

Our Fremont vet develops a personal health care plan tailored to your new puppy or kitten. She also offers you a lot of support and advice along the way!

Our vet will answer all your questions and concerns. We want you and your puppy or kitten to have a great life together!

At Ace Animal Hospital, we offer puppy and kitten packages to new pet owners. These packages are designed to help you with training, nutrition, and disease and parasite prevention.

Puppy & Kitten Care

Tips & Advice From Our Team

Our informative blogs feature helpful tips and advice from our Fremont vet. These will help you keep your pets healthy and happy, whether you are looking for advice on parasite protection or info on common illnesses.

Cat Rabies Vaccine

Cat Rabies Vaccine

Rabies is a dangerous virus that is fatal for cats, dogs, and humans, fortunately, it is preventable. In today's post, our Fremont vets explain the costs, scheduling, and side effects associated with getting your cat vaccinated against rabies.

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Rabies in Dogs

Rabies in Dogs

What is rabies and when should your dog get their vaccine? In this post, our Fremont vets discuss what rabies is and how often dogs need rabies shots.

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Ear Hematoma Surgery in Dogs

Ear Hematoma Surgery in Dogs

Our Fremont vets often see dogs with ear hematomas, but what are they, what causes them, and what are the symptoms? Read on to learn more about aural (ear) hematomas in dogs, and what to do if your dog has one.

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Address & Hours

Ace Animal Hospital proudly serves patients in Fremont and beyond.

Hospital Hours

  • Monday: 08:00 am - 06:00 pm
  • Tuesday: 08:00 am - 06:00 pm
  • Wednesday: 08:00 am - 06:00 pm
  • Thursday: 08:00 am - 06:00 pm
  • Friday: 08:00 am - 06:00 pm
  • Saturday: Closed
  • Sunday: Closed


3750 Mowry Ave., Fremont, CA 94538 US


(510) 790-2525

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New Patients Welcome

Ace Animal Hospital is accepting new patients! Our experienced vets are passionate about the health of Fremont companion animals. Get in touch today to book your pet's first appointment.

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(510) 790-2525 Contact